About the Authors

Eric M. Patterson

emp46@georgetown.edu

Affiliation Department of Biology, Georgetown University, Washington, D.C., United States of America

Janet Mann

Affiliation Department of Biology, Georgetown University, Washington, D.C., United States of America

Competing Interests

The authors have the following competing interest: Field gear was supplied at discounted rates by Airline Supply by J. Sink (http://www.airlinebyjsink.com/) and Splash Dive Center of Alexandria, VA (http://www.splashdivecenter.com/). There are no patents, products in development or marketed products to declare. This does not alter the authors' adherence to all the PLoS ONE policies on sharing data and materials, as detailed online in the guide for authors.

Author Contributions

Conceived and designed the experiments: EMP. Performed the experiments: EMP JM. Analyzed the data: EMP. Contributed reagents/materials/analysis tools: EMP. Wrote the paper: EMP JM. Collected most of the data on sponging in Figure 2: JM.